Merge branch 'bug283' into dev

Fixes: #283

app/playlists.py

@@ -34,6 +34,7 @@ from PyQt6.QtWidgets import (
 )
 
 # Third party imports
+import line_profiler
 
 # App imports
 from audacity_controller import AudacityController
@@ -774,14 +775,29 @@ class PlaylistTab(QTableView):
         if row_count < 1:
             return
 
+        # Don't delete current or next tracks
+        selected_row_numbers = self.selected_model_row_numbers()
+        for ts in [
+            track_sequence.next,
+            track_sequence.current,
+        ]:
+            if ts:
+                if (
+                    ts.playlist_id == self.playlist_id
+                    and ts.row_number in selected_row_numbers
+                ):
+                    self.musicmuster.show_warning(
+                        "Delete not allowed", "Can't delete current or next track"
+                    )
+                    return
+
         # Get confirmation
         plural = "s" if row_count > 1 else ""
         if not ask_yes_no("Delete rows", f"Really delete {row_count} row{plural}?"):
             return
 
         base_model = self.get_base_model()
-
-        base_model.delete_rows(self.selected_model_row_numbers())
+        base_model.delete_rows(selected_row_numbers)
         self.clear_selection()
 
     def get_base_model(self) -> PlaylistModel:
@@ -830,14 +846,12 @@ class PlaylistTab(QTableView):
 
         # Use a set to deduplicate result (a selected row will have all
         # items in that row selected)
-        result = sorted(
-            list(
-                set([self.model().mapToSource(a).row() for a in self.selectedIndexes()])
-            )
-        )
+        selected_indexes = self.selectedIndexes()
 
-        log.debug(f"get_selected_rows() returned: {result=}")
-        return result
+        if not selected_indexes:
+            return []
+
+        return sorted(list(set([self.model().mapToSource(a).row() for a in selected_indexes])))
 
     def get_top_visible_row(self) -> int:
         """
@@ -1119,6 +1133,7 @@ class PlaylistTab(QTableView):
 
         self.setSpan(row, column, rowSpan, columnSpan)
 
+    @line_profiler.profile
     def tab_live(self) -> None:
         """
         Called when tab gets focus